This way, the Miami Heat will have no excuses.

On Sunday, the Heat practiced while wearing jerseys with sleeves in preparation for Wednesday's game against the Los Angeles Lakers. Every team that plays on Christmas will wear the uniforms.

"Guys really wanted to get a true practice with those jerseys," Heat coach Erik Spoelstra said. "I don't know if that was needed. That's what their workout shirts look like anyway. At least mentally, now they don't have an excuse."

They were worn so the players could get accustomed to playing in sleeves. The jerseys are also tighter than regular uniforms.

"We didn't want to get to Christmas Day and just be wearing them for the first time," center Chris Bosh said. "You could have problems and malfunctions. We're players of rhythm and we have to get used to the same thing or at least try them out. It's like breaking in sneakers."

"It feels like a V-neck T-shirt, like the kind you wear under you button-up on Sunday," Bosh said. "I'm more of a classic basketball kind of guy. I've been wearing a tank top since I began playing. I didn't wear a T-shirt in college. It's different."

LeBron James and Dwyane Wade said they didn't experience any discomfort in the jerseys.

"No problems," James said. "You can do different things in practice that you can't do in the game. There's no problem. They felt comfortable. I think everybody felt comfortable in them."

Just in case, Wade said he plans to practice in three different jersey sizes so he can determine the perfect fit. The team will also practice in the uniforms on Christmas Eve.